FUZZY ADAPTIVE POSITION METHOD OF AUTOMATIC CONTROL OF OBJECTS WITH DISCRETE EXECUTIVE DEVICES Russian patent published in 2014 - IPC G05B19/00 

FIELD: instrument making.

SUBSTANCE: fuzzy adaptive position method of automatic control of objects with discrete executive devices is proposed, which is realised by means of a logic controller and consists in generation of control parameters according to fuzzy rules and feeding these control parameters to an object. Control parameters generation is divided into two levels, at the first of which with the help of fuzzy logic they localise (identify) the control range, where further adaptation will be carried out. Localisation of the control range is carried out by definition of the main (base) value of the control parameter of this range according to the formula: U_ad1=U_o(1-β)+U_kβ, where U_ad1 - adaptable control parameter, U_o and U_k - control parameters in two extreme (opposite) conditions B of the object, β - normalised equivalent of object condition (β=0 at B_o, β=1 at B_k, where B_o - initial condition of the object, B_k - final condition of the object), taken as the value of the parameter of the adaptive middle position at this range, and at the second level the value of the control parameter is defined with the help of the adaptive three-position control method.

EFFECT: simplicity of realisation, improved quality of control, higher reliability of functioning due to substantial reduction of number of rules and more efficient control.

2 cl, 5 dwg